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Solder joint failure of PCBA water-soluble solder wire caused
Nov 11, 2022
11-11
2022
Today's electronic device packaging is getting smaller and smaller, coupled with the reality that the thermal stress of the current lead-free process of water-soluble solder wire and the brittleness of lead-free solder wire solder joints have increased significantly, and the solder joint cracking caused by excessive bending during the manufacturing process The probability of occurrence increases accordingly. For package substrates with all surface finishes, excessive strain can cause damage to the solder joints. These failures include solder ball cracking, wire damage, pad lift, and substrate cracking during PCBA fabrication and testing.
High temperature storage test of resin solder wire
Nov 11, 2022
11-11
2022
The high temperature storage of resin solder wire is mainly used to examine the influence of temperature and time on the reliability of resin solder wire under storage conditions. For the solder joints of the resin solder wire, it is often encountered in high temperature storage in the use environment.
Why do automatic soldering machine merchants choose lead-free tin wire
Nov 11, 2022
11-11
2022
One of the soldering materials for electronic products is tin wire, and tin wire is divided into lead tin wire and lead-free tin wire. The price of lead-free tin wire is much higher than that of leaded tin wire, which will greatly increase the cost of soldering materials. Why choose lead-free tin wire for automatic soldering machine merchants? What benefits can the high price of lead-free tin wire bring us?
Specification and classification of solder wire
Nov 10, 2022
11-10
2022
Everyone should be aware of the various specifications of solder wire, and its quality directly affects the welding quality and welding effect. In many industrial welding lines, welding is an indispensable material. Only with welding wire can welding be carried out smoothly. Now It is also widely used in the production and maintenance of the electronics industry in the society.
How to solve the problem that the soldering iron tip does not stick to the tin when the solder wire is soldered?
Nov 10, 2022
11-10
2022
In general, why do we often encounter the phenomenon that the tip of the soldering iron does not stick to the tin when we are soldering the solder wire, so how to solve the problem that the tip of the soldering iron is easy to be black and does not stick to the tin when soldering? In fact, there are still many reasons for non-stick tin. We can only find these problems and solve them. If this happens, how should we find the reasons and solutions:
The relationship between residual debris and humidity after lead-free solder paste soldering
Nov 10, 2022
11-10
2022
In order to further improve the soldering effect, flux must be added to the solder paste. However, due to the active ingredients of the flux and acidic liquids such as organic acids, there will be corrosive problems after the soldering process. If it is not cleaned, it may lead to to component safety and reliability. Among such acidic liquids, "weak organic acids" are relatively common, such as carboxylic acids, which are polar compounds and have certain compatibility with water.
How to solve the blockage of the tin wire of the automatic soldering machine
Nov 10, 2022
11-10
2022
Automatic soldering robots are widely used in electronic equipment manufacturing. It has a good soldering effect on the difficult processing and soldering process of production equipment, especially for circuit boards, pcb welding wires, charger plug-ins, etc. So what should I do if the tin wire of the automatic soldering machine is blocked?
How to judge the quality of solder wire ?
Nov 09, 2022
11-09
2022
If the solder joint is relatively white, it means that the lead content of the solder wire is relatively large, and the quality of the solder wire is poor. For example, only a small part of the solder joint of the 40 degree solder wire is white in the middle, and the surrounding brightness accounts for 70%-80% of the entire solder joint; while the whitening of the solder joint of the 35 degree solder wire accounts for 60%-65% of the entire solder joint. , the surrounding light accounts for 35%-40% of the entire solder joint;
Nickel-plated environmentally friendly solder wire
Nov 09, 2022
11-09
2022
The nickel-plated solder wire adopts advanced production technology and excellent equipment. In the whole production process of the tin wire, the ISO9001 quality management system is strictly implemented, which effectively controls the content of trace metal elements and impurities, and improves the purity of the tin wire.
What are the changes in the temperature of the solder paste when it is heated?
Nov 08, 2022
11-08
2022
What are the characteristics of the change of solder paste in the process of soldering heating?
First, the solvent used to achieve the desired viscosity and screen printing properties begins to evaporate and the temperature rise must be slow (about 3°C per second to limit boiling and splashing and prevent the formation of small tin beads, also, some components are sensitive to internal stress, If the temperature outside the component rises too quickly, it can cause breakage.
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Catherine
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Avril
Chtherine
Fannie
Avril
